It's really hard when there isn't much feedback provided.
Tech interviewing sucks because it asks you to present linear in the interview to measure alignment but the work is anything but linear most of the time.
The phrase be so good no one can ignore you comes to mind for me, but that isn't the only or best way. There is a book by that name that might help you find things about you that you undervalue but are very unique and valuable compared to the rest.
I try to think about it in terms of "how many other candidates that you are speaking with have done x?"
While searching, spend as much time learning and building something not just with emerging tech but maybe some things you see int he job posts. Level up. Setup a Youtube channel with a daily video journal of what you're learning and keep it in line with a daily slide deck. Embed both in the resume as a link so any technical person seeing it can get to meet you and see how you communicate well before they start interviewing.
Ask for feedback on what you could add to your skillset or present differently on from each interview. Maintaining that kind of relationship will help them keep you in mind and hopefully you get some meaningful input.
Attend a lot of meetups and local groups for tech, software, or whatever in your area. You will meet employees and the more you can show and tell there as a beginner and as you get to know them they will naturally invite you to things you might be a good fit for without asking. The route of an invitation is much better than applying online.
Applicant tracking systems are pretty poor filters, and then HR also is a poor filter because they are illiterate in tech for the most part and play keyword
bingo. It's true you can get in front of someone technical and work through that process, but having a warm intro and learning about the company by dropping by to meet someone for lunch, and then learning about it can go a very long way when something becomes available, or a new initiative is in place.
If you do find any of the above helpful or useful, happy to chat as peers via email (anyone). Finding and securing your next opportunity to improve your life shouldn't be this hard.